Analysis and Design of DC-link Voltage Controller in Shunt Active Power Filter

Yu Wang; Yun-Xiang Xie; Xiang Liu

Analysis and Design of DC-link Voltage Controller in Shunt Active Power Filter

Yu Wang

Yun-Xiang Xie

Xiang Liu

Vol. 15, No. 3, pp. 763-774, May 2015

10.6113/JPE.2015.15.3.763

Active power filter

Compensation performance

Dynamic characteristic

Nonlinear variable-parameter controller

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Abstract

This study investigates the inherent influence of a DC-link voltage controller on both DC-link voltage control and the compensation performance of a three-phase, four-wire shunt active power filter (APF). A nonlinear variable-parameter DC-link voltage controller is proposed to satisfy both the dynamic characteristic of DC-link voltage control and steady-state compensation performance. Unlike in the conventional fixed-parameter controller, the parameters in the proposed controller vary according to the difference between the actual and the reference DC-link voltages. The design procedures for the nonlinear voltage controller with variable parameters are determined and analyzed so that the proposed voltage controller can be designed accordingly. Representative simulation and experimental results for the three-phase, four-wire, center-spilt shunt APF verify the analysis findings, as well as the feasibility and effectiveness of the proposed DC-link voltage controller.

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Cite this article

[IEEE Style]

Y. Wang, Y. Xie, X. Liu, "Analysis and Design of DC-link Voltage Controller in Shunt Active Power Filter," Journal of Power Electronics, vol. 15, no. 3, pp. 763-774, 2015. DOI: 10.6113/JPE.2015.15.3.763.

[ACM Style]

Yu Wang, Yun-Xiang Xie, and Xiang Liu. 2015. Analysis and Design of DC-link Voltage Controller in Shunt Active Power Filter. Journal of Power Electronics, 15, 3, (2015), 763-774. DOI: 10.6113/JPE.2015.15.3.763.